10 years ago when the Pandora Box was discovered on Mars and brought to Earth, it's activated and creates a Skywall which divides Japan into Touto, Seito, and Hokuto resulting into untold chaos. Along with creating a complex power dynamic between the three regions, the event brings waves of monsters called Smash down on the country, who terrorize and attack the citizens. Sento Kiryu, an amnesiac taken in by a mysterious cafe owner named Soichi Isurugi who provides him with a belt called the Build Driver that allows him to turn into Kamen Rider Build, which he uses to fight the Smash on his own.
These Two Are A Best Match
Innocent Runaway
Borderline of Justice
The Testimony Will Be Zero
Dangerous Identity
Moonsault of Anger
The Devil's Scientist
Memory Starts to Talk
The Trap of Project Build
Technology of Destruction
Burn, Dragon
Conspiracy Theory
Who Takes Off the Veil?
The False Kamen Rider
Judge Sento Kiryū!
The Weaponry Hero
The Outbreak of the Rider Wars
The Golden Soldier
The Forbidden Item
Devil's Trigger
The Unstoppable Hazard
Victory of Tears
The Phantom of the West
The Man Called Rogue
The Idol's Awakening
The Treacherous Deathmatch
The Counterattack Hero
The Genius Arrives With a Tank
The Opening Bell Rings
The Truth of the Pandora Box
Surge Out, Magma!
Programmed Tragedy
The Final Weapon: Evol
The Best Match is Dissolved
Tower of Destruction
Evolto Hunts Planets
The Ultimate Phase
Mad World
The Unstoppable Genius
The Final Revolution
The Truth of the Best Match
Legacy of Doubt
Another Build
The End of Evolto
The Scientist of Hope
An Oath to Be the One
Zero Degree Flames
To a World of Love & Peace
The Tomorrow Build Will Create
Tetsuwan Atom
Kaitou Sentai Lupinranger + Keisatsu Sentai Patranger ~The Ultimate Weird Combination!~
Ef: A Tale Of Memories & Melodies
Extraordinary You
Dragon Force
Tensou Sentai Goseiger
The Martian Chronicles
Juukou B-Fighter
Juken Sentai Gekiranger
Space Sheriff Sharivan
Himitsu Sentai Gorenger
Misfits
Autumn's Concerto
Through the Smoke
Jupiter's Legacy
My Adventures with Superman
Batten Robomaru
Buddy Complex
Kill la Kill
The Flash